Notre Dame’s Shamrock Series game with BYU likely won’t be known for what the running backs will do. That’s not to say Audric Estime hasn’t done well for the Irish this year. Even though we’ve said before that Chris Tyree should be the one leading this category, it’s time to come to terms with the likelihood that Estime is the main man to run with the ball going forward. Hopefully, that also means more of an opportunity to break out. Before transferring to BYU this season, Chris Brooks was a two-time rushing leader with California. Not missing a beat, he…